[Code Generation - npysim] Added functionality that npysim is only performed in execution of node when sim_mode = "npysim"

[HLSCustomOp] Added new parameters to functions to allow using the same function during npysim and ipgen

[IP Generation] Added functionality to run the .tcl script and build an IP component from a specific node

[Code Generation - npysim] Changed compilation command so that it reads the env variable VIVADO_PATH to include the vivado-hlslib files